Internal Revenue Service

Internal Revenue Service (IRS), division of the U.S. Treasury Dept. that is responsible for the assessment and collection of most federal taxes, except those relating to alcohol, tobacco, firearms, and explosives. Established in 1862, the IRS derives most of its revenues from the collection of corporate and individual income tax.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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